diff options
Diffstat (limited to 'roles/kubernetes/net')
7 files changed, 0 insertions, 233 deletions
diff --git a/roles/kubernetes/net/kubeguard/node/files/kubeguard-interfaces.service b/roles/kubernetes/net/kubeguard/node/files/kubeguard-interfaces.service deleted file mode 100644 index 35fc8f90..00000000 --- a/roles/kubernetes/net/kubeguard/node/files/kubeguard-interfaces.service +++ /dev/null @@ -1,12 +0,0 @@ -[Unit] -Description=Kubeguard Network Setup -After=network.target - -[Service] -Type=oneshot -ExecStart=/var/lib/kubeguard/ifupdown.sh up -ExecStop=/var/lib/kubeguard/ifupdown.sh down -RemainAfterExit=yes - -[Install] -WantedBy=multi-user.target diff --git a/roles/kubernetes/net/kubeguard/node/filter_plugins/kubeguard.py b/roles/kubernetes/net/kubeguard/node/filter_plugins/kubeguard.py deleted file mode 100644 index 199ff14b..00000000 --- a/roles/kubernetes/net/kubeguard/node/filter_plugins/kubeguard.py +++ /dev/null @@ -1,33 +0,0 @@ -from __future__ import (absolute_import, division, print_function) -__metaclass__ = type - -from ansible import errors - - -def direct_net_zone(data, myname, peer): - try: - zones = [] - for zone in data: - if myname in data[zone]['node_interface'] and peer in data[zone]['node_interface']: - zones.append(zone) - - if not zones: - return "" - if len(zones) > 1: - raise errors.AnsibleFilterError("host '%s' and '%s' have multiple direct net zones in common: %s" % - (myname, peer, zones.join(','))) - return zones[0] - - except Exception as e: - raise errors.AnsibleFilterError("direct_net_zones(): %s" % str(e)) - - -class FilterModule(object): - - ''' Kubeguard Network Filters ''' - filter_map = { - 'direct_net_zone': direct_net_zone, - } - - def filters(self): - return self.filter_map diff --git a/roles/kubernetes/net/kubeguard/node/handlers/main.yml b/roles/kubernetes/net/kubeguard/node/handlers/main.yml deleted file mode 100644 index bb7fde2b..00000000 --- a/roles/kubernetes/net/kubeguard/node/handlers/main.yml +++ /dev/null @@ -1,4 +0,0 @@ ---- -- name: reload systemd - systemd: - daemon_reload: yes diff --git a/roles/kubernetes/net/kubeguard/node/tasks/main.yml b/roles/kubernetes/net/kubeguard/node/tasks/main.yml deleted file mode 100644 index 72814e06..00000000 --- a/roles/kubernetes/net/kubeguard/node/tasks/main.yml +++ /dev/null @@ -1,80 +0,0 @@ ---- -- name: install wireguard - import_role: - name: wireguard/base - -- name: create network config directory - file: - name: /var/lib/kubeguard/ - state: directory - -- name: configure wireguard port - set_fact: - kubeguard_wireguard_port: "{{ kubernetes.wireguard_port | default(51820) }}" - -- name: install ifupdown script - template: - src: ifupdown.sh.j2 - dest: /var/lib/kubeguard/ifupdown.sh - mode: 0755 - # TODO: notify reload... this is unfortunately already to late because - # it must probably be brought down by the old version of the script - -- name: generate wireguard private key - shell: "umask 077; wg genkey > /var/lib/kubeguard/kube-wg0.privatekey" - args: - creates: /var/lib/kubeguard/kube-wg0.privatekey - -- name: fetch wireguard public key - shell: "wg pubkey < /var/lib/kubeguard/kube-wg0.privatekey" - register: kubeguard_wireguard_pubkey - changed_when: false - check_mode: no - -- name: install systemd service unit for network interfaces - copy: - src: kubeguard-interfaces.service - dest: /etc/systemd/system/kubeguard-interfaces.service - # TODO: notify: reload??? - -- name: make sure kubeguard interfaces service is started and enabled - systemd: - daemon_reload: yes - name: kubeguard-interfaces.service - state: started - enabled: yes - -- name: install systemd units for every kubeguard peer - loop: "{{ groups['_kubernetes_nodes_'] | difference(inventory_hostname) }}" - loop_control: - loop_var: peer - template: - src: kubeguard-peer.service.j2 - dest: "/etc/systemd/system/kubeguard-peer-{{ peer }}.service" - # TODO: notify restart for peers that change... - -- name: make sure kubeguard peer services are started and enabled - loop: "{{ groups['_kubernetes_nodes_'] | difference(inventory_hostname) }}" - systemd: - daemon_reload: yes - name: "kubeguard-peer-{{ item }}.service" - state: started - enabled: yes - -- name: enable IPv4 forwarding - sysctl: - name: net.ipv4.ip_forward - value: '1' - sysctl_set: yes - state: present - reload: yes - -- name: create cni config directory - file: - name: /etc/cni/net.d - state: directory - -- name: install cni config - template: - src: k8s.json.j2 - dest: /etc/cni/net.d/k8s.json diff --git a/roles/kubernetes/net/kubeguard/node/templates/ifupdown.sh.j2 b/roles/kubernetes/net/kubeguard/node/templates/ifupdown.sh.j2 deleted file mode 100644 index 98b38cf4..00000000 --- a/roles/kubernetes/net/kubeguard/node/templates/ifupdown.sh.j2 +++ /dev/null @@ -1,55 +0,0 @@ -#!/bin/bash - -set -e - -CONF_D="/var/lib/kubeguard/" - -INET_IF="{{ ansible_default_ipv4.interface }}" - -POD_NET_CIDR="{{ kubernetes.pod_ip_range }}" - -{% set br_net = kubernetes.pod_ip_range | ipsubnet(kubernetes.pod_ip_range_size, kubeguard.node_index[inventory_hostname]) -%} -BR_IF="kube-br0" -BR_IP="{{ br_net | ipaddr(1) | ipaddr('address') }}" -BR_IP_CIDR="{{ br_net | ipaddr(1) }}" -BR_NET_CIDR="{{ br_net }}" - -TUN_IF="kube-wg0" -TUN_IP_CIDR="{{ kubernetes.pod_ip_range | ipsubnet(kubernetes.pod_ip_range_size, 0) | ipaddr(kubeguard.node_index[inventory_hostname]) }}" - - -case "$1" in - up) - # bring up bridge for local pods - ip link add dev "$BR_IF" type bridge - ip addr add dev "$BR_IF" "$BR_IP_CIDR" - ip link set up dev "$BR_IF" - iptables -t nat -A POSTROUTING -s "$BR_NET_CIDR" -o "$INET_IF" -j MASQUERADE - modprobe br_netfilter - - # bring up wireguard tunnel to other nodes - ip link add dev "$TUN_IF" type wireguard - ip addr add dev "$TUN_IF" "$TUN_IP_CIDR" - wg set "$TUN_IF" listen-port {{ kubeguard_wireguard_port }} private-key "$CONF_D/$TUN_IF.privatekey" - ip link set up dev "$TUN_IF" - - # make pods and service IPs reachable - # !!! use IP of bridge as source so we don't produce martians if direct-zones are involved!!! - ip route add "$POD_NET_CIDR" dev "$TUN_IF" src "$BR_IP" - ;; - down) - # bring down wireguard tunnel to other nodes - ip route del "$POD_NET_CIDR" dev "$TUN_IF" - ip link del dev "$TUN_IF" - - # bring down bridge for local pods - iptables -t nat -D POSTROUTING -s "$BR_NET_CIDR" -o "$INET_IF" -j MASQUERADE - ip link del dev "$BR_IF" - ;; - *) - echo "usage: $0 (up|down)" - exit 1 - ;; -esac - -exit 0 diff --git a/roles/kubernetes/net/kubeguard/node/templates/k8s.json.j2 b/roles/kubernetes/net/kubeguard/node/templates/k8s.json.j2 deleted file mode 100644 index 65b1357a..00000000 --- a/roles/kubernetes/net/kubeguard/node/templates/k8s.json.j2 +++ /dev/null @@ -1,12 +0,0 @@ -{ - "cniVersion": "0.3.1", - "name": "k8s", - "type": "bridge", - "bridge": "kube-br0", - "isDefaultGateway": true, - "hairpinMode": true, - "ipam": { - "type": "host-local", - "subnet": "{{ kubernetes.pod_ip_range | ipsubnet(kubernetes.pod_ip_range_size, kubeguard.node_index[inventory_hostname]) }}" - } -} diff --git a/roles/kubernetes/net/kubeguard/node/templates/kubeguard-peer.service.j2 b/roles/kubernetes/net/kubeguard/node/templates/kubeguard-peer.service.j2 deleted file mode 100644 index 0503ca03..00000000 --- a/roles/kubernetes/net/kubeguard/node/templates/kubeguard-peer.service.j2 +++ /dev/null @@ -1,37 +0,0 @@ -[Unit] -Description=Kubernetes Network Peer {{ peer }} -After=network.target -Requires=kubeguard-interfaces.service -After=kubeguard-interfaces.service - -{% set pod_ip_self = kubernetes.pod_ip_range | ipsubnet(kubernetes.pod_ip_range_size, kubeguard.node_index[inventory_hostname]) | ipaddr(1) | ipaddr('address') -%} -{% set pod_net_peer = kubernetes.pod_ip_range | ipsubnet(kubernetes.pod_ip_range_size, kubeguard.node_index[peer]) -%} -{% set direct_zone = kubeguard.direct_net_zones | default({}) | direct_net_zone(inventory_hostname, peer) -%} -{% if direct_zone %} -{% set direct_ip = kubeguard.direct_net_zones[direct_zone].transfer_net | ipaddr(kubeguard.node_index[inventory_hostname]) %} -{% set direct_interface = kubeguard.direct_net_zones[direct_zone].node_interface[inventory_hostname] %} -{% set direct_ip_peer = kubeguard.direct_net_zones[direct_zone].transfer_net | ipaddr(kubeguard.node_index[peer]) %} -{% else %} -{% set tun_ip = kubernetes.pod_ip_range | ipsubnet(kubernetes.pod_ip_range_size, 0) | ipaddr(kubeguard.node_index[peer]) -%} -{% set wg_pubkey = hostvars[peer].kubeguard_wireguard_pubkey.stdout -%} -{% set wg_host = hostvars[peer].external_ip_cooked | default(hostvars[peer].ansible_default_ipv4.address) -%} -{% set wg_port = hostvars[peer].kubeguard_wireguard_port -%} -{% set wg_allowedips = (tun_ip | ipaddr('address')) + "/32," + pod_net_peer %} -{% endif %} -[Service] -Type=oneshot -{% if direct_zone %} -ExecStart=/sbin/ip addr add {{ direct_ip }} dev {{ direct_interface }} -ExecStart=/sbin/ip link set up dev {{ direct_interface }} -ExecStart=/sbin/ip route add {{ pod_net_peer }} via {{ direct_ip_peer | ipaddr('address') }} src {{ pod_ip_self }} -ExecStop=/sbin/ip route del {{ pod_net_peer }} -ExecStop=/sbin/ip link set down dev {{ direct_interface }} -ExecStop=/sbin/ip addr del {{ direct_ip }} dev {{ direct_interface }} -{% else %} -ExecStart=/usr/bin/wg set kube-wg0 peer {{ wg_pubkey }} allowed-ips {{ wg_allowedips }} endpoint {{ wg_host }}:{{ wg_port }} persistent-keepalive 10 -ExecStop=/usr/bin/wg set kube-wg0 peer {{ wg_pubkey }} remove -{% endif %} -RemainAfterExit=yes - -[Install] -WantedBy=multi-user.target |